Meretz chief Zehava Gal-On said on Thursday that the US decision that it reportedly halted a shipment of missiles to Israel is a warning sign to Israel and shows an additional deterioration in the US-Israel relationship. 'The conduct of Israel's government and especially that of the foreign minister [Foreign Minister Avigdor Liberman] puts at risk again and again the relations with Israel's most important strategic ally,' Gal-On said. 'Israel must wake up and stop the international trend of its isolation,' she added.